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3 September, 08:54

Calculate the ratio of effusion rates between helium and radon gases

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  1. 3 September, 09:01
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    From Graham's law of diffusion the effusion rate of a gas is inversely proportional to the square root of its molar mass.

    Therefore for helium and radon; Helium has a mass of 4 g while randon has 222, hence;

    = √222/√4

    = 14.90/2

    = 7.45

    Thus the ratio of effusion rate between helium and randon is 7.45
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